摘要
以内蒙古鄂尔多斯补连塔矿斜井盾构工程为背景,通过理论计算、监测分析、设备配置等研究方法,对盾构施工煤矿斜井深埋段围岩极限位移和变形控制技术进行分析,分析结果表明:1得到不同围岩条件下斜井盾构掘进是否发生塑性流变临界深度,并预估深埋段变形值,为采取处置技术提供依据;2提出控制围岩变形技术。根据围岩变形情况在管片壁后采用柔性填充,适应围岩变形;采取加长锚索加管片的结构控制围岩变形。
The study sets the inclined shaft shield construction project of Bulianta coalmine of Erdos, Inner Mongolia as the background and uses theoretical calculation, supervision and analysis, equipment allocation and other research methods. This paper makes an analysis on control technology applied to the limit displacement and deformation of the deep-buried section wall rock of coalmine inclined shaft under shield construction constructing condition. The results indicate （1） .obtaining if the inclined shaft shield construction tunneling produces plastic flow critical depth or not under different wall rock conditions; And evaluate the deformation value of the deep-buried section to provide evidence for adopting treatment technologies; （2） Providing technologies to control wall rock deformation. According to the deformation situation of wall rock, adopt soft filling on the back of segment wall to adapt to the deformation of wall rock; to adopt lengthening anchor and segment structure to control the deformation of wall rock.
出处
《施工技术》
CAS
北大核心
2016年第22期1-5,共5页
Construction Technology
基金
国家科技支撑计划项目(2013BAB10B05)
关键词
盾构
煤矿
斜井
极限位移
变形
控制
shields
coal mine
inclined shaft
limit displacement
deformation
control
